Commit Graph

5607 Commits (7c957349070e91afd65ed16f7bd386db2c8966f6)
 

Author SHA1 Message Date
Flakes Updater 7c95734907 go.mod.sri: update SRI hash for go.mod changes
Signed-off-by: Flakes Updater <noreply@tailscale.com>
2 years ago
Anton Tolchanov 8546ff98fb tsweb: move varz handler(s) into separate modules
This splits Prometheus metric handlers exposed by tsweb into two
modules:
- `varz.Handler` exposes Prometheus metrics generated by our expvar
  converter;
- `promvarz.Handler` combines our expvar-converted metrics and native
  Prometheus metrics.

By default, tsweb will use the promvarz handler, however users can keep
using only the expvar converter. Specifically, `tailscaled` now uses
`varz.Handler` explicitly, which avoids a dependency on the
(heavyweight) Prometheus client.

Updates https://github.com/tailscale/corp/issues/10205

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
Anton Tolchanov c153e6ae2f prober: migrate to Prometheus metric library
This provides an example of using native Prometheus metrics with tsweb.

Prober library seems to be the only user of PrometheusVar, so I am
removing support for it in tsweb.

Updates https://github.com/tailscale/corp/issues/10205

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
Anton Tolchanov 11e6247d2a tsweb: expose native Prometheus metrics in /debug/varz
The handler will expose built-in process and Go metrics by default,
which currently duplicate some of the expvar-proxied metrics
(`goroutines` vs `go_goroutines`, `memstats` vs `go_memstats`), but as
long as their names are different, Prometheus server will just scrape
both.

This will change /debug/varz behaviour for most tsweb binaries, but
notably not for control, which configures a `tsweb.VarzHandler`
[explicitly](a5b5d5167f/cmd/tailcontrol/tailcontrol.go (L779))

Updates https://github.com/tailscale/corp/issues/10205

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
License Updater 690446c784 licenses: update android licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Mihai Parparita cef0a474f8 ipn/ipnlocal: check that sockstatLogger is available in c2n endpoint
Otherwise there may be a panic if it's nil (and the control side of
the c2n call will just time out).

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Mihai Parparita 03b2c44a21 ipn/ipnlocal: more explicitly say if sockstats are not available
Makes it more apparent in the PeerAPI endpoint that the client was
not built with the appropriate toolchain or build tags.

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Flakes Updater 1bec2cbbd5 go.mod.sri: update SRI hash for go.mod changes
Signed-off-by: Flakes Updater <noreply@tailscale.com>
2 years ago
Jordan Whited f571536598
go.mod: bump wireguard-go (#7836)
This pulls in a synchronization optimization, see
tailscale/wireguard-go@af17262.

Updates tailscale/corp#8734

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2 years ago
James Tucker e09c434e5d wgengine/magicsock: remove locking sync requirements on conn disco keys
The lazy initialization of the disco key is not necessary, and
contributes to unnecessary locking and state checking.

Updates #cleanup

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
James Tucker e1b71c83ac wgengine/magicsock: remove unused fields on discoInfo
Updates #cleanup

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
James Tucker a257b2f88b wgengine/magicsock: add immutability documentation to endpointDisco
Updates #7825

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
James Tucker fb18af5564 wgengine/netstack: fix data-race on startup
Running tailscaled with the race detector enabled immediately fires on
this field, as it is updated after first read.

Updates #cleanup

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Charlotte Brandhorst-Satzkorn c573bef0aa tailcfg,wgengine: add initial support for WireGuard only peers
A peer can have IsWireGuardOnly, which means it will not support DERP or
Disco, and it must have Endpoints filled in order to be usable.

In the present implementation only the first Endpoint will be used as
the bestAddr.

Updates tailscale/corp#10351

Co-authored-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
Co-authored-by: James Tucker <james@tailscale.com>
Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
James Tucker 6cfcb3cae4 wgengine/magicsock: fix synchronization of endpoint disco fields
Identified in review in #7821 endpoint.discoKey and endpoint.discoShort
are often accessed without first taking endpoint.mu. The arrangement
with endpoint.mu is inconvenient for a good number of those call-sites,
so it is instead replaced with an atomic pointer to carry both pieces of
disco info. This will also help with #7821 that wants to add explicit
checks/guards to disable disco behaviors when disco keys are missing
which is necessarily implicitly mostly covered by this change.

Updates #7821

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Mihai Parparita e978299bf0 net/sockstats: disable deltas for the cell radio power state metric
Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Will Norris 22680a11ae net/sockstats: return early if no radio period length
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris 75784e10e2 sockstats: add client metrics for radio power state
power state is very roughly approximated based on observed network
activity and AT&T's state transition timings for a typical 3G radio.

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Tom DNetto 6a627e5a33 net, wgengine/capture: encode NAT addresses in pcap stream
Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
License Updater 92459a9248 licenses: update win/apple licenses
Signed-off-by: License Updater <noreply+license-updater@tailscale.com>
2 years ago
License Updater 7012bf7981 licenses: update tailscale{,d} licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
License Updater 07b29f13dc licenses: update android licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2 years ago
Mihai Parparita f49b9f75b8 util/clientmetric: allow client metric values to be provided by a function
Adds NewGaugeFunc and NewCounterFunc (inspired by expvar.Func) which
change the current value to be reported by a function. This allows
some client metric values to be computed on-demand during uploading (at
most every 15 seconds), instead of being continuously updated.

clientmetric uploading had a bunch of micro-optimizations for memory
access (#3331) which are not possible with this approach. However, any
performance hit from function-based metrics is contained to those metrics
only, and we expect to have very few.

Also adds a DisableDeltas() option for client metrics, so that absolute
values are always reported. This makes server-side processing of some
metrics easier to reason about.

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
phirework c0e0a5458f
cmd/tailscale: show reauth etc. links even if no login name (#7803)
Signed-off-by: Jenny Zhang <jz@tailscale.com>
2 years ago
shayne 81fd00a6b7
cmd/tailscale/cli: [serve] add support for proxy paths (#7800) 2 years ago
Maisem Ali d42d570066
ssh/tailssh: handle output matching better in tests (#7799) 2 years ago
Brad Fitzpatrick 2c0bda6e2e ssh/tailssh: make Tailscale SSH work on gokrazy
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Flakes Updater 3d29da105c go.mod.sri: update SRI hash for go.mod changes
Signed-off-by: Flakes Updater <noreply@tailscale.com>
2 years ago
Jordan Whited 765d3253f3
go.mod: bump wireguard-go (#7792)
Pull in TUN checksum optimizations and crypto channel changes.

Updates tailscale/corp#8734

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2 years ago
shayne ba4e58f429
cmd/tailscale/cli: do not allow turning Funnel on while shields-up (#7770) 2 years ago
valscale 7bfb7744b7
derp,magicsock: add debug envknobs for HTTP and derp server name (#7744)
Make developing derp easier by:

1. Creating an envknob telling clients to use HTTP to connect to derp
servers, so devs don't have to acquire a valid TLS cert.

2. Creating an envknob telling clients which derp server to connect
to, so devs don't have to edit the ACLs in the admin console to add a
custom DERP map.

3. Explaining how the -dev and -a command lines args to derper
interact.

To use this:

1. Run derper with -dev.

2. Run tailscaled with TS_DEBUG_USE_DERP_HTTP=1 and
TS_DEBUG_USE_DERP_ADDR=localhost

This will result in the client connecting to derp via HTTP on port
3340.

Fixes #7700

Signed-off-by: Val <valerie@tailscale.com>
2 years ago
Jordan Whited f475e5550c
net/neterror, wgengine/magicsock: use UDP GSO and GRO on Linux (#7791)
This commit implements UDP offloading for Linux. GSO size is passed to
and from the kernel via socket control messages. Support is probed at
runtime.

UDP GSO is dependent on checksum offload support on the egress netdev.
UDP GSO will be disabled in the event sendmmsg() returns EIO, which is
a strong signal that the egress netdev does not support checksum
offload.

Updates tailscale/corp#8734

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2 years ago
David Anderson 45138fcfba go.toolchain.rev: update for go 1.20.3
Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
James Tucker b0ed863d55 atomicfile: use /tmp for socket path on macOS
macOS does not allow unix socket creation in private temp directories,
but global /tmp is ok, so swap out for global temp for now.

Updates #7658
Updates #7785

Signed-off-by: James Tucker <jftucker@gmail.com>
2 years ago
David Anderson 4d1b3bc26f net/art: implement the stride table building block of ART
A stride table is an 8-bit routing table implemented as an array binary
tree, with a special tree updating function (allot) that enables lightning
fast address lookups and reasonably fast insertion and deletion.

Insertion, deletion and lookup are all allocation-free.

Updates #7781

                                        │    sec/op    │
StrideTableInsertion/10/random_order       16.79n ± 2%
StrideTableInsertion/10/largest_first      16.83n ± 1%
StrideTableInsertion/10/smallest_first     16.83n ± 0%
StrideTableInsertion/50/random_order       17.84n ± 1%
StrideTableInsertion/50/largest_first      20.04n ± 1%
StrideTableInsertion/50/smallest_first     16.39n ± 0%
StrideTableInsertion/100/random_order      14.63n ± 0%
StrideTableInsertion/100/largest_first     17.45n ± 4%
StrideTableInsertion/100/smallest_first    12.98n ± 0%
StrideTableInsertion/200/random_order      12.51n ± 4%
StrideTableInsertion/200/largest_first     18.36n ± 3%
StrideTableInsertion/200/smallest_first    9.609n ± 3%
StrideTableDeletion/10/random_order        19.50n ± 1%
StrideTableDeletion/10/largest_first       19.34n ± 0%
StrideTableDeletion/10/smallest_first      19.43n ± 0%
StrideTableDeletion/50/random_order        14.58n ± 1%
StrideTableDeletion/50/largest_first       14.27n ± 2%
StrideTableDeletion/50/smallest_first      15.51n ± 0%
StrideTableDeletion/100/random_order       12.02n ± 3%
StrideTableDeletion/100/largest_first      10.64n ± 0%
StrideTableDeletion/100/smallest_first     13.21n ± 3%
StrideTableDeletion/200/random_order       14.05n ± 4%
StrideTableDeletion/200/largest_first      9.288n ± 5%
StrideTableDeletion/200/smallest_first     18.51n ± 1%
StrideTableGet                            0.5010n ± 0%

                                        │  routes/s   │
StrideTableInsertion/10/random_order      59.55M ± 2%
StrideTableInsertion/10/largest_first     59.42M ± 1%
StrideTableInsertion/10/smallest_first    59.43M ± 0%
StrideTableInsertion/50/random_order      56.04M ± 1%
StrideTableInsertion/50/largest_first     49.91M ± 1%
StrideTableInsertion/50/smallest_first    61.00M ± 0%
StrideTableInsertion/100/random_order     68.35M ± 0%
StrideTableInsertion/100/largest_first    57.32M ± 3%
StrideTableInsertion/100/smallest_first   77.06M ± 0%
StrideTableInsertion/200/random_order     79.93M ± 4%
StrideTableInsertion/200/largest_first    54.47M ± 3%
StrideTableInsertion/200/smallest_first   104.1M ± 3%
StrideTableDeletion/10/random_order       51.28M ± 1%
StrideTableDeletion/10/largest_first      51.70M ± 0%
StrideTableDeletion/10/smallest_first     51.48M ± 0%
StrideTableDeletion/50/random_order       68.60M ± 1%
StrideTableDeletion/50/largest_first      70.09M ± 2%
StrideTableDeletion/50/smallest_first     64.45M ± 0%
StrideTableDeletion/100/random_order      83.21M ± 3%
StrideTableDeletion/100/largest_first     94.03M ± 0%
StrideTableDeletion/100/smallest_first    75.69M ± 3%
StrideTableDeletion/200/random_order      71.20M ± 5%
StrideTableDeletion/200/largest_first     107.7M ± 5%
StrideTableDeletion/200/smallest_first    54.02M ± 1%
StrideTableGet                            1.996G ± 0%

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Will Norris 6d5c3c1637 ipn: prefer allow/denylist terminology
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris 5a3da3cd7f ipn: add sockstat logger to stable builds
This makes the sockstat logger available on all builds, but only enables
it by default for unstable.  For stable builds, the logger must be
explicitly enabled via C2N component logger.

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Aaron Klotz 90fd04cbde ipn/ipnlocal, util/winutil/policy: modify Windows profile migration to load legacy prefs from within tailscaled
I realized that a lot of the problems that we're seeing around migration and
LocalBackend state can be avoided if we drive Windows pref migration entirely
from within tailscaled. By doing it this way, tailscaled can automatically
perform the migration as soon as the connection with the client frontend is
established.

Since tailscaled is already running as LocalSystem, it already has access to
the user's local AppData directory. The profile manager already knows which
user is connected, so we simply need to resolve the user's prefs file and read
it from there.

Of course, to properly migrate this information we need to also check system
policies. I moved a bunch of policy resolution code out of the GUI and into
a new package in util/winutil/policy.

Updates #7626

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2 years ago
Mihai Parparita e3cb8cc88d ipn/ipnlocal: automatically upload sockstats logs when the period ends
Avoids needing a separate c2n call to get the logs uploaded.

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham 8d3acc9235 util/sysresources, magicsock: scale DERP buffer based on system memory
This adds the util/sysresources package, which currently only contains a
function to return the total memory size of the current system.

Then, we modify magicsock to scale the number of buffered DERP messages
based on the system's available memory, ensuring that we never use a
value lower than the previous constant of 32.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ib763c877de4d0d4ee88869078e7d512f6a3a148d
2 years ago
Tom DNetto 483109b8fc client/tailscale: Fix NPE caused by erroneous close in error case
Fixes https://github.com/tailscale/tailscale/issues/7572

When handling an error during `StreamDebugCapture`, the response body
is closed, even though the response struct is always nil. Thanks
to https://github.com/darkrain42 for debugging this!!

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
shayne 59879e5770
cmd/tailscale/cli: make serve and funnel visible in list (#7737) 2 years ago
Flakes Updater 1bf65e4760 go.mod.sri: update SRI hash for go.mod changes
Signed-off-by: Flakes Updater <noreply@tailscale.com>
2 years ago
Mihai Parparita 38bbb30aaf .github/workflows: remove tsconnect-pkg-publish.yml
Moved to the corp repo with tailscale/corp#7990

Updates tailscale/corp#10165

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
James Tucker f4da995940 atomicfile: reject overwriting irregular files
The intent of atomicfile is to overwrite regular files. Most use cases
that would overwrite irregular files, unix sockets, named pipes,
devices, and so on are more than likely misuse, so disallow them.

Fixes #7658

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Mihai Parparita 02582083d5 cmd/tsconnect: allow root directory to be passed in
#7339 changed the root directory logic to find the ancestor of the cwd
with a go.mod file. This works when running the the binary from this
repo directly, but breaks when we're a dependency in another repo.

Allow the directory to be passed in via a -rootdir flag (the repo that
depends on it can then use `go list -m -f '{{.Dir}}' tailscale.com`
or similar to pass in the value).

Updates tailscale/corp#10165

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
James Tucker 40fa2a420c envknob,net/tstun,wgengine: use TS_DEBUG_MTU consistently
Noted on #5915 TS_DEBUG_MTU was not used consistently everywhere.
Extract the default into a function that can apply this centrally and
use it everywhere.

Added envknob.Lookup{Int,Uint}Sized to make it easier to keep CodeQL
happy when using converted values.

Updates #5915

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Andrew Dunham 8ed4fd1dbc envknob/logknob: add package for configurable logging
A LogKnob allows enabling logs with an envknob, netmap capability, and
manually, and calling a logging function when logs are enabled.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Id66c608d4e488bfd4eaa5e867a8d9289686748be
2 years ago
Andrew Dunham 3b39ca9017 ipn/ipnlocal: update comment in SetComponentDebugLogging
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8c36a62079dce77fc81b9cdfb5fe723b007218ba
2 years ago
Maisem Ali e0d291ab8a ipn/store: add support for stores to hook into a custom dialer
For stores like k8s secrets we need to dial out to the k8s API as though Tailscale
wasn't running. The issue currently only manifests when you try to use an exit node
while running inside a k8s cluster and are trying to use Kubernetes secrets as the
backing store.

This doesn't address cmd/containerboot, which I'll do in a follow up.

Updates #7695

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago